:root{
  --bg:#f8f2e4;
  --card:#fffcf4;
  --ink:#14203f;
  --ink-dim:rgba(20,32,63,.72);
  --amber:#b45f06;
  --coral:#e9805b;
  --mint:#1d7f74;
  --line:rgba(20,32,63,.16);
  --display:'Playfair Display',Georgia,serif;
  --body:'IBM Plex Sans',sans-serif;
  --mono:'IBM Plex Mono',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:radial-gradient(1200px 700px at 85% -10%,#ffe6b0 0%,transparent 60%),
             radial-gradient(900px 600px at -10% 40%,#d6eee8 0%,transparent 55%),var(--bg);
  color:var(--ink);font-family:var(--body);font-weight:300;line-height:1.65;
  overflow-x:hidden;
}
em{font-style:italic;color:var(--amber);font-weight:500}
strong{font-weight:500;color:var(--ink)}
a{color:inherit;text-decoration:none}
#stars{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}
.grain{position:fixed;inset:0;z-index:50;pointer-events:none;opacity:.05;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>")}
main,.nav,.footer{position:relative;z-index:1}

/* nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;justify-content:space-between;align-items:center;
  padding:1.2rem clamp(1.2rem,4vw,3.5rem);backdrop-filter:blur(10px);background:linear-gradient(var(--bg),transparent)}
.brand{font-family:var(--mono);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;display:flex;align-items:center;gap:.6rem}
.brand-dot{width:9px;height:9px;border-radius:50%;background:#f6b73c;box-shadow:0 0 14px #f6b73c}
.nav nav{display:flex;gap:clamp(1rem,3vw,2.2rem)}
.nav nav a{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim);transition:color .2s}
.nav nav a:hover{color:var(--amber)}

/* hero */
.hero{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:2rem;
  padding:7rem clamp(1.2rem,5vw,5rem) 4rem;position:relative}
.eyebrow{font-family:var(--mono);font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;color:var(--mint);margin-bottom:1.6rem}
h1{font-family:var(--display);font-weight:900;font-size:clamp(2.8rem,7.4vw,6.6rem);line-height:.98;letter-spacing:-.02em}
h1 em{font-weight:500}
.lead{max-width:34rem;margin-top:2rem;font-size:1.12rem;color:var(--ink-dim)}
.cta{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.4rem}
.btn{display:inline-flex;align-items:center;gap:.7rem;padding:.95rem 1.5rem;font-family:var(--mono);font-size:.82rem;
  letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--line);transition:.25s}
.btn-primary{background:var(--amber);color:#fff;border-color:var(--amber);font-weight:500}
.btn-primary:hover{background:var(--ink);border-color:var(--ink);color:var(--bg);transform:translateY(-2px)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.hero-art{display:block;justify-self:center;width:min(100%,460px);transform:rotate(1.6deg);border:1px solid var(--line);background:var(--card);
  padding:.7rem;box-shadow:0 30px 60px -30px rgba(20,32,63,.45);transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.hero-art:hover{transform:rotate(0) translateY(-4px)}
.hero-art img{display:block;width:100%;height:auto;max-height:calc(100vh - 11rem);object-fit:contain;margin:0 auto}
.scroll-hint{position:absolute;left:clamp(1.2rem,5vw,5rem);bottom:1.8rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--ink-dim);display:flex;align-items:center;gap:.8rem}
.scroll-hint span{width:46px;height:1px;background:var(--amber);transform-origin:left;animation:line 2.4s ease-in-out infinite}
@keyframes line{0%,100%{transform:scaleX(.2)}50%{transform:scaleX(1)}}

/* load reveal */
.reveal{opacity:0;transform:translateY(24px);animation:up .9s cubic-bezier(.2,.7,.2,1) forwards;animation-delay:calc(var(--d)*.14s + .1s)}
@keyframes up{to{opacity:1;transform:none}}
.reveal-on-scroll{opacity:0;transform:translateY(28px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal-on-scroll.in{opacity:1;transform:none}

/* section scaffolding */
section{padding:clamp(4rem,10vw,8rem) clamp(1.2rem,5vw,5rem)}
.about-label{display:flex;align-items:baseline;gap:1rem;font-family:var(--mono);text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;
  color:var(--amber);border-top:1px solid var(--line);padding-top:1rem;margin-bottom:2.5rem}
.section-name{color:var(--ink-dim)}
h2{font-family:var(--display);font-weight:500;font-size:clamp(1.8rem,3.8vw,3.2rem);line-height:1.15;letter-spacing:-.01em}

/* about */
.about-body{max-width:62rem;margin-left:clamp(0rem,8vw,9rem)}
.about-cols{display:grid;grid-template-columns:1fr 1fr;gap:3rem;margin-top:3rem;color:var(--ink-dim);font-size:1.05rem}

/* approach */
.approach{background:linear-gradient(180deg,transparent,rgba(246,183,60,.14),transparent)}
.pillars{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line)}
.pillars li{padding:2.4rem 2rem 2.6rem;border-right:1px solid var(--line);transition:background .3s}
.pillars li:last-child{border-right:0}
.pillars li:hover{background:rgba(180,95,6,.07)}
.pillars li:nth-child(2){transform-origin:center}
.p-no{font-family:var(--display);font-style:italic;font-size:3.4rem;line-height:1;color:var(--amber);display:block;margin-bottom:1.4rem}
.pillars h3{font-family:var(--display);font-weight:700;font-size:1.5rem;margin-bottom:.8rem}
.pillars p{color:var(--ink-dim)}

/* apps */
.apps-head h2{max-width:40rem}
.apps-sub{color:var(--ink-dim);margin-top:1rem;margin-bottom:4rem}
.grade{display:grid;grid-template-columns:clamp(110px,16vw,220px) 1fr;gap:clamp(1rem,3vw,3rem);margin-bottom:4rem;align-items:start}
.grade-mark{position:sticky;top:6rem;line-height:.85}
.grade-mark span{font-family:var(--display);font-weight:900;font-size:clamp(5rem,14vw,12rem);color:transparent;-webkit-text-stroke:1.5px var(--amber);letter-spacing:-.04em}
.grade-mark small{display:block;font-family:var(--mono);font-size:.78rem;letter-spacing:.3em;text-transform:uppercase;color:var(--ink-dim);margin-top:.6rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem}
.cards-1{grid-template-columns:minmax(260px,420px)}
.card{background:var(--card);box-shadow:0 10px 30px -18px rgba(20,32,63,.35);padding:1.8rem;display:flex;flex-direction:column;position:relative;border:1px solid var(--line);
  transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .3s}
.card:nth-child(even){margin-top:2rem}
.card::before{content:"";position:absolute;left:-1px;top:-1px;width:36px;height:36px;border-top:2px solid var(--amber);border-left:2px solid var(--amber);transition:.35s}
.card:hover{transform:translateY(-6px);border-color:rgba(180,95,6,.55)}
.card:hover::before{width:100%;height:100%;opacity:.25}
.card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:1.6rem}
.ico{width:46px;height:46px;color:var(--mint)}
.tag{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-dim);text-align:right}
.card h3{font-family:var(--display);font-weight:700;font-size:1.65rem;line-height:1.15;margin-bottom:.7rem}
.card p{color:var(--ink-dim);font-size:.95rem;flex:1}
.card-foot{display:flex;align-items:center;gap:1.1rem;margin-top:1.6rem;padding-top:1.4rem;border-top:1px dashed var(--line)}
.qr{width:84px;height:84px;padding:5px;background:#fff;border:1px solid var(--line);flex-shrink:0}
.open{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--mono);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;color:var(--amber);
  border-bottom:1px solid transparent;transition:.2s;line-height:1.4}
.open:hover{border-color:var(--amber)}

/* closing */
.closing{text-align:left;padding-top:4rem;padding-bottom:7rem}
.closing p{font-family:var(--display);font-style:italic;font-weight:400;font-size:clamp(1.7rem,4.2vw,3.6rem);line-height:1.2;max-width:60rem;margin-left:clamp(0rem,8vw,9rem)}
.sig{display:block;margin:2rem 0 0 clamp(0rem,8vw,9rem);font-family:var(--mono);font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}

.footer{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;padding:1.8rem clamp(1.2rem,5vw,5rem);border-top:1px solid var(--line);
  font-size:.82rem;color:var(--ink-dim)}
.mono{font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;font-size:.72rem}

/* responsive */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:6.5rem}
  .hero-art{width:min(88%,420px);order:-1;margin:0 auto;transform:none}
  .hero-art img{max-height:none}
  .about-cols,.pillars{grid-template-columns:1fr}
  .pillars li{border-right:0;border-bottom:1px solid var(--line)}
  .pillars li:last-child{border-bottom:0}
  .grade{grid-template-columns:1fr}
  .grade-mark{position:static;display:flex;align-items:baseline;gap:1rem}
  .grade-mark span{font-size:5rem}
  .card:nth-child(even){margin-top:0}
  .scroll-hint{display:none}
}
@media (max-width:520px){
  .nav nav a:first-child,.nav nav a:nth-child(3){display:none}
  .brand{white-space:nowrap;font-size:.74rem}
  .card-foot{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal,.reveal-on-scroll{opacity:1;transform:none}
}

/* contact */
.contact h2{max-width:40rem}
.contact-sub{max-width:34rem;margin:1.2rem 0 2.4rem;color:var(--ink-dim);font-size:1.05rem}
.mail{display:inline-flex;align-items:center;gap:1.1rem;padding:1.3rem 1.8rem;border:1px solid var(--amber);color:var(--amber);
  font-family:var(--display);font-size:clamp(1.15rem,3.2vw,2rem);transition:.3s;max-width:100%}
.mail span{overflow-wrap:anywhere}
.mail .arr{transition:transform .3s}
.mail:hover{background:var(--amber);color:var(--bg)}
.mail:hover .arr{transform:translateX(6px)}
.socials{list-style:none;display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.6rem}
.socials a{display:inline-flex;align-items:center;gap:.6rem;padding:.7rem 1.1rem;border:1px solid var(--line);font-family:var(--mono);
  font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;transition:.25s}
.socials a:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-2px)}

/* whole card is clickable */
.open::after{content:"";position:absolute;inset:0;z-index:1}
.card{cursor:pointer}
.open:focus-visible{outline:none}
.card:has(.open:focus-visible){outline:2px solid var(--amber);outline-offset:3px}
.card:hover .open{border-color:var(--amber)}
.grade[data-grade="8-10"] .grade-mark span{font-size:clamp(2.8rem,6vw,4.8rem);white-space:nowrap;letter-spacing:-.02em}
.grade[data-grade="pisa"] .grade-mark span{font-size:clamp(2.6rem,5.6vw,4.4rem);letter-spacing:-.02em}

/* language switch + note */
.nav nav a.lang{padding:.25rem .6rem;border:1px solid var(--line);color:var(--ink)}
.nav nav a.lang:hover{border-color:var(--amber)}
.lang-note{display:block;font-style:normal;margin-top:.35rem;font-size:.62rem;letter-spacing:.14em;color:var(--amber)}